Final answer:
The Samburu proceedings language would likely be Swahili or the Samburu language. Swahili is a Bantu language used as a lingua franca in East Africa, while the Samburu language is used within the ethnic group for traditional purposes.
Step-by-step explanation:
The language spoken during the Samburu proceedings would most likely be Swahili or the local Samburu language. Swahili, with its origins as a Bantu language mixed with Arabic, has had a long history in Tanzania and Kenya as a lingua franca for trade and communication among the diverse groups in East Africa. Swahili culture was heavily influenced by trade and the assimilation of Arabic words, further enriching the language. The Samburu people, part of the Maa-speaking group, would utilize their native language in traditional rituals and daily communication, while Swahili might be used in broader settings or interactions with other groups.